Chemical Interactions Inv. 1-2

anything that has mass and takes up space

Which of the following is the symbol for a single element?

Which is smaller (simpler); an element or substance?

What are the elements in H2O?

True or False. Color change is evidence of a chemical reaction.

the name of a substance based on every day language

code that represents the number and type of atoms in a substance

True or False. A substance changing state is evidence of a chemical reaction.

True or False. A change in temperature is evidence of a chemical reaction.

What does the symbol Na represent on the periodic table?

the name chemists use for a substance; contains the names of the elements in that substance

an organization of the elements based on chemical properties

Mendeleev sorted elements into .........

What are the elements in CaCl2?

True or False. Symbols on the periodic table with 2 letters always have 2 capital letters.

a fundamental substance that cannot be broken into simpler substances

process during which the atoms of a starting substance rearrange to form new substances

What are the elements in CO?

True or False. A substance can be identified by its chemical formula.

a representation of an element using one or two letters

Mendeleev grouped elements according to ...

True or False. A substance can be identified by its chemical name?

True or False. All substances are made of elements.